ASTROSAT CZTI

Data Quality Report

Orbit 10797

Creation date: 2024-06-27T16:04:01.463084
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A03_071T01_9000001562_10797cztM0_level2.evt modeM0/AS1A03_071T01_9000001562_10797cztM0_level2_quad_clean.evt
Size (bytes)506,661,12073,751,040
Size483.2 MB 70.3 MB
Events in quadrant A3,267,815449,536
Events in quadrant B4,511,609448,969
Events in quadrant C3,206,322461,146
Events in quadrant D3,929,408432,029

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137773
B0176822
C0134672
D0159842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6325931.470356%
B63253465.470356%
C6325711.122530%
D63252333.683794%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7615 6326 0 0 0.00% 0.00%
B 7615 6325 163 163 2.14% 2.58%
C 7615 6326 1 1 0.01% 0.02%
D 7615 6326 103 103 1.35% 1.63%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 15 33360 194.7 834 820 167.1
A 14 254 8011 43.03 834 820 167.1
A 0 226 7808 41.81 834 820 167.1
B 4 239 810436 5234.23 828 810 154.7
B 15 204 212675 1369.71 828 810 154.7
B 0 85 171530 1103.7 828 810 154.7
C 13 61 6043 28.06 819 825 186.0
C 14 234 4967 22.27 819 825 186.0
C 14 67 4113 17.68 819 825 186.0
D 13 138 256800 1321.6 809 788 193.7
D 13 104 222706 1145.59 809 788 193.7
D 1 52 210413 1082.13 809 788 193.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter